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Spontaneously designed, self-assembled and oriented ZnO nanorods by photoinduced polymerization of epoxydiacrylate formulation in the presence of 2-mercapto-thioxanthone
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2022-08-09 , DOI: 10.1016/j.porgcoat.2022.107074
Hicret Kirtay, Özge Akbulut, Nergis Arsu

Here we report an environmentally friendly, fast, efficient and low cost method for in-situ preparation of ZnO nanorods in polymer matrix which is obtained using epoxydiacrylate formulation by UV irradiation. Compared to our previous study, the shape of the ZnO nanoparticles even with the same photoinitiator was found to mainly depend on the polymer matrix, but another important finding that was seen from the SEM images is that the type of photoinitiator helped for spontaneous self-assembly and orientation of ZnO nanoparticles. This very important issue arose when the one component Type II photoinitiator, namely, 2-mercapto thioxanthone was used in formulation. Self-assembly and orientation of ZnO nanorods in polymer were not the case either with Thioxanthone and Thiophenol or in the presence of Type I photoinitiator. All these experimental results for synthesis of ZnO nanoparticles in hydrophilic and hydrophobic polymer matrices may help to understand the effect of photoinitiator and polymer.



中文翻译:

在 2-巯基噻吨酮存在下通过光诱导聚合环氧二丙烯酸酯配方自发设计、自组装和定向 ZnO 纳米棒

在这里,我们报告了一种环境友好、快速、高效和低成本的方法,用于在聚合物基质中原位制备 ZnO 纳米棒,该方法是使用环氧二丙烯酸酯配方通过紫外线照射获得的。与我们之前的研究相比,发现即使使用相同的光引发剂,ZnO 纳米颗粒的形状也主要取决于聚合物基质,但从 SEM 图像中看到的另一个重要发现是光引发剂的类型有助于自发自组装ZnO 纳米粒子的取向和取向。当在配方中使用单组分 II 型光引发剂,即 2-巯基噻吨酮时,就会出现这个非常重要的问题。聚合物中 ZnO 纳米棒的自组装和取向在噻吨酮和苯硫酚的情况下或在 I 型光引发剂存在的情况下都不是这样。

更新日期:2022-08-09
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